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ENCRYPTED MESSAGE COMMUNICATION

  • US 20170099268A1
  • Filed: 10/01/2015
  • Published: 04/06/2017
  • Est. Priority Date: 10/01/2015
  • Status: Active Grant
First Claim
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1. A computer-implemented method for communicating message data from a sender computer to a receiver computer via a network, the method comprising, at the sender computer:

  • encrypting the message data in dependence on a cryptographic key to produce a ciphertext;

    establishing an access password for the ciphertext with a host computer connected to the network;

    sending the ciphertext via the network to the host computer for storage in association with the access password by the host computer; and

    sending an email, containing said cryptographic key in cleartext, to the receiver computer via the network;

    wherein the cryptographic key comprises a random cryptographic value which is independent of the access password.

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